florin@vm:~$ ps aux | grep nginx
root       884  0.0  0.0  76944  1308 ?        Ss   10:28   0:00 nginx: master process /usr/sbin/nginx

$ /usr/sbin/nginx -V 2>&1 | grep --colour=auto conf

~# nginx -t
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful